The IBM MQ classes for JMS configuration file
An IBM® MQ classes for JMS configuration file specifies properties that are used to configure IBM MQ classes for JMS.
The format of an IBM MQ classes for JMS configuration file is that of a standard Java properties file. A sample configuration file called jms.config is supplied in the bin subdirectory of the IBM MQ classes for JMS installation directory. This file documents all the supported properties and their default values.
java -Dcom.ibm.msg.client.config.location= config_file_url application_name
In the command, config_file_url is a uniform resource locator (URL) that
specifies the name and location of the IBM MQ classes for JMS
configuration file. URLs of the following types are supported: http, file, ftp, and jar.
java -Dcom.ibm.msg.client.config.location=file:/D:/mydir/myjms.config MyAppClass
This command identifies the IBM MQ classes for JMS configuration
file as the file D:\mydir\mjms.config on the local Windows system. When an application starts, IBM MQ classes for JMS reads the contents of the configuration file and stores the specified properties in an internal property store. If the java command does not identify a configuration file, or if the configuration file cannot be found, IBM MQ classes for JMS uses the default values for all the properties.
An IBM MQ classes for JMS configuration file can be used with any of the supported transports between an application and a queue manager or broker.
Overriding properties specified in an IBM MQ MQI client configuration file
An IBM MQ MQI client configuration file can also specify properties that are used to configure IBM MQ classes for JMS. However, properties specified in an IBM MQ MQI client configuration file apply only when an application connects to a queue manager in client mode.
com.ibm.mq.cfg. stanza. propName = propValue
The
variables in the entry have the following meanings:- stanza
- The name of the stanza in the IBM MQ MQI client configuration file that contains the attribute
- propName
- The name of the attribute as specified in the IBM MQ MQI client configuration file
- propValue
- The value of the property that overrides the value of the attribute specified in the IBM MQ MQI client configuration file
Alternatively, you can override an attribute in an IBM MQ MQI client configuration file by specifying the property as a system property on the java command. Use the preceding format to specify the property as a system property.
ChannelDefinitionFile
and ChannelDefinitionDirectory
in the CHANNELS stanza of the client configuration
file are not used. See Using a client channel definition table with IBM MQ classes for JMS for details of how to use the CCDT with
the IBM MQ classes for JMS.